A nurse in the emergency department is caring for a client who collapsed after playing football on a hot day. After reviewing the admission laboratory findings, the nurse recognizes that these findings are consistent with which of the following conditions? Sodium: 152 mEq/L Potassium: 3.6 mEq/L Chloride: 105 mEq/L Glucose: 102 mg/dL BUN: 18 mg/dL Creatinine: 0.7 mg/dL